Heating system



Bea-23,1924. 1,520,231

w. L. FLEISHER .YHEAT'ING "SYSTEM Filed Oct. 27. 1922 INVENTOR w. L. FLEISHER ATI'ORNEY Patented Dec. 23, 1924..

UNITED STATES PATENT fornca.

WALTER I). I'LEISHEB,-OF NEW YORK, N. Y., ASSIGNOR 130 W. 'L. & CO.' INC., 01' NEW YORK, N. Y., A. CORPORATION OF NEW YORK.

ammo; SYSTEM.

- Application filed October 27, 1922. Serial Nb. 597,483.

, To dll whom it may mm..-

Be it known that I, WALTER L. Fnnrsnnn, a citizen-of the United States, and a resident of the borough of Manhattan, county of New York, city and State of New York, have invented a new and Improved Heating System, of which the following is a full, clear, and exact description.

My invention relates to a heating system used in conjunction with a central air conditioning system or blast system of heating having a central unit, usuall placed in the basement .or on the roof 0 the building, with reheaters on the various floors for tempering the floors, in addition to the one central heater stack.

Where the air'conditioning system or blast system of heating is installed, and the building is protected by an automatic sprinkler equipment or where perishable goods are stored liable to be affected by excessive cold, it has been necessary toinstall direct heating systems, stoves or other means of keeping the floors above the freezing'point in the winter time during Sundays, holidays and nights, or, it becomes necessary to run the main blower, heater, and washer in connection with the humidifying systemwhen there is no real use for that amount of air change or conditioning which is incidental to the operation of the system, thus entailing a good bit of night and Sunday service and much expense of operation.

To overcomethese conditions, I have invented an attachment to a complete blast or humidifying system.

: In tactically all of these systems of heat ing, t erev is .a stack of heaters or coils installed in the main duct system at each floor, which source of heat is controlledusually b azthermostat in the room. Theair from tli e main system is blown through this heater-and from that point distributes itself underpressure through the duct work on the floor to various portions of the floor for the heating and'conditioning of that floor. In my invention I utilize this heater. It

may be necessary to-increase the size of same where it would be necessary to have a higher temperature on the floor than the heater itself would produce. I also utilize the duct work system in conjunction with my system of'heating so that in reality little change of operation is necessary in the existing system to adapt itself to this system of heating.

L main fan is being used.

In the appended drawing, 7

F gure 1 represents a. diagrammatic view of a bulldlng equipped with an air conditioning heating system modified according to my invention.

' Figure 2 1s an enlarged section of the air tioning systemof heating 7, is installed. The main duct 8 of the system leads to all I the various floors 9 and from which niain duct ducts 10 are branched out on each floor. Ineach of the ducts 10 a heater 11 is located, and, in front of each of the heaters I provide a louvre 12. This louvre 12 is located on the main fan side, that is, the fan 7' installed in the basement 6. This louvre has a spring 13 normally tending to open the said louvre inwardly: The air pressure from the main fan, therefore, would, automatically close this louvre.

Inother words, the louvre 12 is an'automatic louvre opening as soon as the main heating system is stopped and closing automatically as soon as the main heating system is started. The air blast .of the main heatin system when flowing from the ducts 10 wil force the louvre 12 against the opening by overcoming the resistance of the spring 13, normall tending to move the louvre away from t e opening. The spring 13 tends to maintain the louvre at an angle substantially less than a right angle with the wall in which the opening is made (see Figure 4) so as to facilitate the air blastof the mainheating system in moving the louvre to close the opening.

On the side of the heater opposite that where the louvre is located, I provide a depression 14 in the duct which forms the house i mg for a fan 15 which may be of any suit able type .for the purpose of drawing air from the heaters and sending it further into the duct. Above the fan, I rovide a twoleaf damper 16, so arrange leaves come together across the duct over the fan and when the leaves are open they form a cover for the housing of the fan and provide a direct path for the air when the (This is indicated in dotted lines in Figure 2.)

When the that the two as and for the purposes set forth.

damper is in the position shown in Figure 2, the air may be drawn by the supplementary fan and discharged beyond the damper 16' to the ducts; which ducts are used for the ordinary purpose of distributing the air of the main system. When the auxilia fan 15 operates, it draws the air throug the automatic louvre, taking the air from the floor which is to be heated.

The air drawn b the auxiliary fan 15 passes through the eater 11 and is forced through the duct 10 to be discharged through the various parts of the floor, through the regular duct work. The air that is discharged and partially cooled by radiation is again redrawn through the automatic louvre and again circulated after being reheated by the stack 11.

The important main feature of the invention being the utilization of the heater or tempering stacks on the floor present in the main heating system, the provision of an automatic louvre, of an auxllia'ry fan and a two-leaf damper.

By means of the above, I am able with a considerably smaller amount of power and expense to obtain substantially the same result on any or all of the floors without the use of the main heating system.

In my arrangement as disclosed, I utilize the existing air duct system and can recirculate the air on the same floor. This auxiliary system of heating permits the maintaining of a lower temperature while I prevent freezing and it will also prevent undue drying in places where textlles are manufactured or are in the process of manufacture and which may be afi'ected by the utilization of the main heating unit, not properly humidified, or where auxiliary furnaces or heaters, or anything of this kind, if used, would disregard the moisture condition of the air in the room.

I claim: a

1. In a main heating system, a floor air duct, a heater in the duct, an automatically controlled normally opened air inlet for the duct, located in proximity to the heater, said inlet being adapted to be closed by the air pressure of the main heating system, a fan associated with the air duct and disposed on the side of the heater remote from the automatic inlet, andmeans associated with the duct and fan for either shutting off the fan from the duct or allowing the fan to draw air throu h the automatic inlet and heater and send it through the duct, substantially 2. In amain heating system, a floor air louvre for said opening, said louvre being adapted to be closed by the air (pressure of the main heating system, a fanassociated with the air duct and disposed on the side of the heater remote from the opening, and means for either shutting 0d the fan from the duct or permitting the said fan to drawair through the opening and heater and force the same through the-'duct,, ,substantially as and for the purposes set forth.

3. In a main heating system, a' fioor air duct, a heater in the duct, said duct having an opening near the heater, an automatic louvre normally open for said opening and the main heating system, a fan having a housing adapted to be connected to the air duct near the heater, on the side of the heater remote from the opening, and means associated with the housing of the fan wherebv the fan may be shut ofi' from the duct-or permitted to draw air through the opening and heater and send the air through the duct.

4. In a main heating system, a floor air duct, a heater in the duct, said ductaving an opening near the heater, 9. normal y open automatic louvre for said opening, arranged to close said opening by the air pressure of the main heating system, said air duct having a. depression in proximity to the heater, on the side of the heater remote from the opening in the duct, a fan in said depression and a damper associated with the depression whereby the said depression may be separated from the duct or connected thereto, said fan being so located in said depression that when the depression is connected to the duct the fan will draw air through the opening and heater and deliver it to the duct.

5. In a main heating system, a floor air duct, a heater in the duct, said duct having an opening, a normally open louvre for said opening arranged to be closed by the air pressure of the main heating system, said duct having a depression in proximity to the heater on the slde remote from the opening in the duct, a fan in said depression, and a two-leaf damper mounted in said depression so that the two leaves will come together above the fan in the air duct, said two leaves of the damper being adapted close the depression in the air duct.

WALTER L. FLEISZ'I? its 47th adapted to close under the air pressure of 

